单选题The Rules state that risk of collision shall be deemed to exist（）．AWhenever two vessels approach from opposite directionsBIf the bearing of an approaching vessel does not appreciably changeCWhenever a vessel crosses ahead of the intended track of another vesselDIf one vessel approaches another so as to be overtaking
单选题
The Rules state that risk of collision shall be deemed to exist（）．
A
Whenever two vessels approach from opposite directions
B
If the bearing of an approaching vessel does not appreciably change
C
Whenever a vessel crosses ahead of the intended track of another vessel
D
If one vessel approaches another so as to be overtaking
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